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Miss Marple believes she's seen a murder in a passing-by train, yet when the police find no evidence she decides to investigate it on her own.

Miss Marple and Mr. Stringer are witnesses to the death by heart attack of elderly, rich Mr. Enderby. Yet they have their doubts about what happened. The police don't believe them, thus leading Miss Marple to yet again investigate by herself.

A murderer is brought to court and only Miss Marple is unconvinced of his innocence. Once again she begins her own investigation.

During an annual board of trustees meeting, one of the trustees dies. Miss Marple thinks he’s been poisoned after finding a chemical on him. She sets off to investigate at the ship where he had just come from. The fourth and final film from the Miss Marple series starring Margaret Rutherford as the quirky amateur detective.

On a mission of mercy, Jennifer Hart is in Germany to donate bone marrow to Maximilian, a young leukemia patient. Following the operation, she plans to spend a romantic anniversary in Munich with her husband Jonathan. The bone marrow clinic's director, Peter Donner, is surprised by Jennifer's uncanny resemblance to his French fiancée, Simone Grohe. When she goes missing, Jennifer steps in to play the role of Simone to save Peter the embarrassment of an explanation to his cousin and benefactor Karl von Ostenberg at the lavish engagement party. But, of course, it is Karl who kidnapped Simone - in order to control the fate of Peter's inheritance - and now Jennifer is in as much danger as Simone! Once again the Harts tackle danger and mystery with their usual devil-may-care charm and romance

The Harts find themselves in the middle of a dangerous murder plot, but it isn't clear if the plot it a famous author's fictional murder-mystery, or an actual murder plot, until Jonathan finds himself the unsuspecting target of a killer. It begins to look like the culprit behind the plot is an old friend, Frank Crane, but there may be a connection to a corporate takeover of Hart Industries as well.

Bo is a transexual prostitute in Brussels who left home after being abused by her father. She's infuatuated with a neighbor and suspected by the police in a series of transexual murders. In order to clear herself she must turn detective.

When a mentor and friend of Jennifer's dies, she and Jonathan return to the sleepy town where Jennifer once lived and worked as a reporter. Nearly immediately, they discover that all is not right within this picturesque town. The town's economic troubles pale next to the danger the Harts find themselves in as they try to sort out whether their friend's death was murder, and what sinister secrets may lie behind the truth.

During a visit to childhood friend Edith, retired housewife Hetty Wainthropp discovers that Edith's husband, Frank, has a son by a previous marriage. Hetty decides to turn amateur detective to trace him. When this gives her a taste for detection, Hetty decides to set up a private detective agency.

Mystery writer Cornelia Van Gorder has rented a country house called "The Oaks", which not long ago was the scene of some murders committed by a strange and violent criminal known as "The Bat". Meanwhile, the house's owner, bank president John Fleming, has recently embezzled one million dollars in securities and has hidden the proceeds in the house, but is killed before he can retrieve it.

Mystery writer Barry Craig (Allyn Joslyn) and his wife Jane (Evelyn Keyes), prefer solving crimes rather than writing about them. They get a chance when killings plague the fashion photography studio of Ralph McCormick (Edmund Lowe). After his secretary, Julie Taylor(Anita Louise) reports an attempt to murder her there, Erika McCormick's (Ann Savage) Aunt Isabel Fleming (Mary Forbes) is stabbed and the evidence points to Madge Lawrence (Bess Flowers) an older model and an apparent suicide. Police Inspector Joseph Clinton (Frank Craven) declares the case closed...but then Erika is murdered.